Fountain pen



anch l2, 1935. E, K. WERNER FOUNTAIN PEN- Filed Aug. l, 1934 l INVENTOR. bef/V5 AT /Vf-,Q/Vf/Q 01% ATTORNEYS Mar. 12, 1935 I UNITED STATES PATENT OFFICE FOUNTAIN PEN Eugene K. Werner, New York, N. Y. Application August 1, 1934, serial Nc. 737,921

4 Claims. (Cl. 12042) This invention relates to new and useful im- Figure 6 is a transverse sectional view, taken provements in fountain pens andl more particusubstantially on the line 6-6 of Figure 5, larly it pertains to fountain pens of the type illus- Figure 'l` is a transverse sectional view taken trated 'in my prior Patent No. 1,959,187, issued substantially on the line 7-7 of Figure 5, and; May 15, 1934. Figure 8 is a fragmentary longitudinal sectional 5 It is the object of the present invention to imview of the pen barrel. prove the construction of fountain pens, particu- ,Referring to the drawing by reference charlarly of the type which employ a solubleink eleactors, 10 designates the pen barrel, which prefmcnt capable of being dissolved in the presence erably has a transparent section 11, therein. The 10 of water or other suitable uid.- barrello provides a reservoir for a suitable liquid 10 In all such pens with which I am familiar, the and the transparent barrel section provides an insoluble ink element is relatively small in size, thus dicator by which the quantity of liquid contained greatly limiting the capacity of the pen and renin the barrel may be ascertained. dering the replenishing of the soluble ink ele- The pen may be provided with any type of ment more often necessary. barrel filling means which in the present embodi- 15 A feature of the present invention 4resides in' ment of the invention consists of a piston head a. novel fountain pen feed bar assembly, which 12, movable through the barrel 10, by a piston construction permits of the employment of a rod 13, which extends through the rear end wall soluble ink element of larger size than can ordi- 14. 0f the barrel and Which, when not in use. may 2o narily be employed, thereby requiring the replacebe enclosed and protected against accidental op- 20 ment of the soluble ink element at less frequent eration by a cap 19, which has threaded engageintervals than with pens of this type as generally ment with the barrel '10, as at 20. A second cap constructed. l 21, for enclosing the writing end of the pen when` A further feature of the invention resides in a the pen is not in use, may be mounted upon the novel construction of fountain pen feed bar asfree end of thel pen while the pen is being used- 25 sembly which renders extremely simple, the op- The barrel 10, has one end open, and this open erations attendant the renewal of the soluble ink end will be hereinafter referred to as the forelement. ward end of the barrel.

Other features of the invention relate to certain The forward end of the barrel carries the feed 3o novel and improved constructions, 'arrangements bar assembly which will now be described. 30 and combinations of parts hereinafter described The feed bar assembly Consists 0f e Sleeve 22, and particularly pointed out in the claims, the which is secured in any desired manner in the advantages of which will be readily understood forward end of the barrel. This sleeve 22, is l and appreciated by those skilled in the art, formed with. an internal thread 23 and its inner The invention will be clearly understood from end is closed by a perforated wall 24, having 35 the accompanying drawing illustrating the mvenopenings 25, therein. suitably secured within the tion in its preferred forms and the following desleeve 22, as for example by means of an external tailed desgription of the consmction therein thread which has inter-engagement with the inshowm ternal thread 23, of the sleeve 22, there is a sleeve do In the drawing: 26. The sleeve 26 is of such length that when 40 Figure 1 is a View m elevation' partly m M it is in place in the sleeve 22, its inner end will tion, of a fountain pen constructed in accordance be closely adjacent 5 but not in Contact with the with the present invention griiorateilwall 24, Iutf the sleeief 22.thTlfie silegave orms e s uppo or moun or e ee ar, Figure 2 is an enlarged mngitudmal sectionalwhich when it is in proper position with relation 45 View 0n an enlarged scale of a portion of the pen to the sleeve 26 will have its inner end closely barrel and the feed bar assembly, the view being adjacent to, but out of contact with the perfotaken substantially on the une 2 2 of Figure 1 rated wall 24, and preferably ush with the inner Figure 3 is a transverse sectional view, taken end of the sleeve 26 so m1513115' 0n the une 3-3 0f Figure 1 In Figure 2 of the drawing, the feed bar is 50 l" 4 is a' transverse Sectional View taken designated 27, and is provided with a recess 28,

Substantially 0n the line 4-4 of Figure 2, i which extends longitudinauy of the feed bar and e 5 is afragmentary longitudinal sectional has an open rear .end 29. This recess 28, serves view on an enlarged scale, illustrating a slightly as a container for a soluble ink element sucltl moed form of the invention, as an ink stick 30, which, by reason of the length 55 of the recess 28, may be of considerably larger dimensions than ink elements such as commonly employed in 'pens of this character.

This form of the invention operates in the following manner.

The barrel 10 having been filled with water as heretofore described, the water passes through the perforated rear wall 24 into the recess 28, in the presence of the soluble ink element 30, partially dissolving the same:A and forming a'writing fluid. 'I'he writing uid, duringA a writing operation passes through the passage 40, which is formed by longitudinally slitting the feed bar 27 and is fed by the feed bar to the writing point. When it becomes necessary to position a new soluble ink element 30, the sleeve 26, is unscrewed from the sleeve 22 and upon its removal therefrom, the open end 29, of the recess 28, will be exposed for the insertion of a new soluble ink element after which the sleeve 26, may be replaced vand4 the pen will be ready for use.

That form of the invention illustrated in Figure 5,. diers from the form described, only in the construction of the feed bar. In this form of the invention, the soluble ink element is contained in a recess 41, which in some respect is similar to the construction shown in my prior patent. The recess 41, has an open side 42 the sleeve 26 serving to retain the soluble ink element in the recess 41. This form of the invention operates in lthe same manner as heretofore described.

From the foregoing, it is apparent that the present invention provides a new and novel construction of fountain pen which is highly eicient forated wall closing the inner end of saidsleeve, a feed bar, said feed bar having a recess therein for the retention of a soluble ink element, and means for securing said feed bar in the aforementioned sleeve.

2. In a pen of the type described, a barrel forming a liquid reservoir, an internally threaded sleeve mounted in one end of the barrel, a per-V forated wall closing the innerend of said sleeve, a second sleeve threaded into the interior ythread of said first ementioned sleeve, and a feed bar carfirst mentioned sleeve, said second mentioned.

sleeve having an open inner end which when the parts are assembled, occupies a position closely adjacent the perforated wall of the flrst mentioned sleeve, a feed bar carried by the second mentioned sleeve, said feed bar having a longitudinally extending recess terminating at the rear end of the feed bar in an open end adapted to be closed by the perforated wall of the first mentioned sleeve when the several parts are in asf sembled position.

4. A feed bar assembly for fountain pens comprising a feed bar havinga recess therein, said recess having-an open rear end, a sleeve in which the feed bar is mounted, said sleeve having ran open rearI end which terminates substantially iiush with the inner end of the feed bar, a sleeve surrounding the aforementioned sleeve, and a perforated wall closing the inner end ofthe last mentioned sleeve, said perforated wall also form ing a closure for the open inner end of the recess of the feed bar when the parts are in their assembled position.

- vEUGENE K. WERNER. 

